Vol. 34, pp. 47-48 March 31, 1921 



PROCEEDINGS 



OF THE 



BIOLOGICAL SOCIETY OF WASHINGTON 



NOTES ON THREE CLUPEOID FISHES COLLECTED 



BY EDMUND HELLER IN SAN FILIPE BAY, 



GULF OF CALIFORNIA. 



BY CARL L. HUBBS. 



Several specimens of clupeoid fishes (herrings and anchovies), 

 collected by Edmund Heller in San Filipe Bay on the gulf coast 

 of Lower California, are now deposited in the Field Museum of 

 Natural History. These include the types of a new species of 

 Anchoviella, named for the collector, and topotypes of a nominal 

 species, which this added material shows to be a synonym of 

 Cetengraulis mysticetus. 



1. Opisthonema libertate Gunther. 

 Three specimens, each with 20 anal rays. 



2. Anchoviella helleri, new species. 



Relationships. — Anchoviella helleri closely resembles naso, starksi, cul- 

 trata and delicatissima, differing from each in details of form and propor- 

 tions, and in the number of fin-rays, gill-rakers, etc. 



Holotype. — A specimen 78 mm. long to caudal base, taken by Edmund 

 Heller (for whom the species is named), with two slightly smaller paratypes, 

 in San Filipe Bay, Gulf of California; Cat. No. 3332, Field Museum of 

 Natural History. 



Description.— Body slender, the contours weakly arched; greatest depth, 

 4.9 (to 5.2) in length to caudal base; least depth of caudal peduncle, 2.8 

 (2.8 to 3.2) in length of head; belly rounded both before and behind pelvic 

 fins, but scarcely carinate. Head slender and rather long, its length to end 

 of opercle being contained 3.65 times in length to caudal; its greatest depth, 

 below occiput, 1.8 (1.65 to 1.75) in its length. Snout long, abruptly pro- 

 duced beyond upper jaw and no.strils, rounded terminally; its length 

 .slightly less than diameter of eye, 5.5 (to 4.5) in head; length of eye, 4.5 

 (4.2 to 4.3). Maxillary long, tapering behind its subterminal dilation to its 

 extreme rounded tip; nearly extended to gill opening. Teeth developed in 

 both jaws, all directed vertically. Cheek an acute triangle, its base half 

 the distance from its apex to middle of pupil ; opercle oblique, oblong, about 

 one-third as wide as deep. Gill-rakers dentate, bluntly pointed, compara- 

 tively short and widely spaced, the longest not quite so long as eye ; their 

 number, 18 + 18 (to 18 + 20). 



7_Pnor. Bior.. Soo. Wa.'^h.. Vol.. 34. 1021. (47) 



